Knee and Osteoarthritis Outcome Score for Children (KOOS-Child), English version LK2.1, updated October 2015
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KOOS-Child KNEE SURVEY
Today’s date: ___________________ Date of birth: ___________________
Name: _______________________________________________________
INSTRUCTIONS
These questions collect information about how your injured knee affects you. Answer
every question by ticking the appropriate box, only one box for each question. If you
are unsure about how to answer a question, please select the best answer you can.
KNEE PROBLEMS
S1. During the past 7 days, how often has your knee been swollen?
Never
Rarely
Sometimes
Often
Always
S2. During the past 7 days, how often has your knee made any noise/sounds?
Never
Rarely
Sometimes
Often
Always
S3. During the past 7 days, how often did your knee get stuck?
Never
Rarely
Sometimes
Often
Always
S4. During the past 7 days, how often have you been able to fully straighten your knee
on your own?
Always
Often
Sometimes
Rarely
Never
S5. During the past 7, days how often have you been able to fully bend your knee on
your own?
Always
Often
Sometimes
Rarely
Never
S6. During the past 7 days, how much difficulty have you had moving your knee just
after waking up in the morning?
No difficulty
A little
Some
A lot
Extreme difficulty
S7. During the past 7 days, how much difficulty have you had later in the day moving
your knee after being sedentary for a while?
None
A little
Some
A lot
Extreme
P1. During the past month, how often have you experienced knee pain?
Never
Rarely
Sometimes
Often
All the time
Knee and Osteoarthritis Outcome Score for Children (KOOS-Child), English version LK2.1, updated October 2015 2
HOW PAINFUL
How much knee pain have you experienced in the past 7 days during the following
activities? Check the best answer for each item
No
pain
A little
pain
Some
pain
A lot of
pain
Extreme
pain
P2. Twisting/pivoting on your
injured knee when
walking/standing/running
P3. Fully straightening your
injured knee
P4. Fully bending your injured
knee
P6a. Walking up stairs
P6b. Walking down stairs
P8a. Sitting with your injured
knee bent
P9. Standing upright on both
legs for any amount of time
DIFFICULTY DURING DAILY ACTIVITIES
A1. During the past 7 days, how much difficulty have you had walking down stairs?
No difficulty
A little
Some
A lot
Extreme difficulty
A2. During the past 7 days, how much difficulty have you had walking up stairs?
No difficulty
A little
Some
A lot
Extreme difficulty
A3. During the past 7 days, how much difficulty have you had standing up from a
chair?
No difficulty
A little
Some
A lot
Extreme difficulty
A5. During the past 7 days, how much difficulty have you had to bend down and pick
up an object from the floor?
No difficulty
A little
Some
A lot
Extreme difficulty
A7. During the past 7 days, how much difficulty have you had getting in to/out of a car?
No difficulty
A little
Some
A lot
Extreme difficulty
Knee and Osteoarthritis Outcome Score for Children (KOOS-Child), English version LK2.1, updated October 2015
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A10. During the past 7 days, how much difficulty have you had to get out of bed?
No difficulty
A little
Some
A lot
Extreme difficulty
A12. During the past 7 days, how much difficulty have you had to change knee position
when lying in bed?
No difficulty
A little
Some
A lot
Extreme difficulty
A13. During the past 7 days, how much difficulty have you had getting in to/out of the
bathtub/shower?
No difficulty
A little
Some
A lot
Extreme difficulty
A14. During the past 7 days, how much difficulty have you had to sit in a chair with
your injured knee bent?
No difficulty
A little
Some
A lot
Extreme difficulty
A16. During the past 7 days, how much difficulty have you had to carry heavy bags
/backpacks etc?
No difficulty
A little
Some
A lot
Extreme difficulty
A17. During the past 7 days, how much difficulty have you had to do light chores such
as cleaning your room, filling/emptying the dishwasher, making your bed, etc?
No difficulty
A little
Some
A lot
DIFFICULTY DURING SPORTS AND PLAYING
SP1. During the past 7 days, how much difficulty have you had to
squat down during play or sports activities?
No difficulty
A little
Some
A lot
Extreme difficulty
SP2. During the past 7 days, how much difficulty have you had to
run during play or sports activities?
No difficulty
A little
Some
A lot
Extreme difficulty
SP3. During the past 7 days, how much difficulty have you had to
jump during play or sports activities?
No difficulty
A little
Some
A lot
Extreme difficulty
SP4. During the past 7 days, how much difficulty have you had to
twist/pivot because of your injured knee during play or sports
activities?
No difficulty
A little
Some
A lot
Extreme difficulty
Extreme difficulty
Knee and Osteoarthritis Outcome Score for Children (KOOS-Child), English version LK2.1, updated October 2015
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SP5. During the past 7 days, how much difficulty have you had to
kneel because of your injured knee?
No difficulty
A little
Some
A lot
Extreme difficulty
SPN6. During the past 7 days, how much difficulty have you had to
keep your balance when walking /running on uneven ground?
No difficulty
A little
Some
A lot
Extreme difficulty
SPN7. During the past 7 days, how much difficulty have you had
playing sports because of your injured knee?
No difficulty
A little
Some
A lot
Extreme difficulty
HOW HAS YOUR INJURY AFFECTED YOUR LIFE?
Q1. How often do you think about your knee problem?
Never
Rarely
Sometimes
Often
All the time
Q2. How much have you changed your lifestyle because of your injured knee?
Not at all
A little
Some
A lot
Very much
A little
Not at all
Q3. How much do you trust your injured knee?
Completely
A lot
Some
Q4. Overall, how much difficulty do you have with your injured knee?
No difficulty
A little
Some
A lot
Extreme difficulty
QN5. How much difficulty have you had getting to school or walking around in school
(climbing stairs, opening doors, carrying books, participating during recess) because of
your injured knee?
No difficulty
A little
Some
A lot
Extreme difficulty
QN6. How much difficulty have you had to do things with friends because of your
injured knee?
No difficulty
A little
Some
A lot
Thank you very much for completing all the questions in this
questionnaire!
Extreme difficulty